Historic UK Water Quality Sampling Harmonised Monitoring Scheme Summary Data
This record is for Approval for Access product AfA178.The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) data contains statistics for a series of water quality sampling sites including annual means, maximum and minimum values for each Region for specified determinands from 1975 onwards. The sampling network includes 230 sites, which are mainly located at the tidal limits of major rivers or at the points of confluence of significant tributaries. The information held within the HMS includes data on: Oxygen and ammonia, Nutrients, List II metals and Pesticides. Annual mean concentrations have been calculated for each HMS site. The data show the annual averages of the site means in each region, with each site given equal weight irrespective of the number of samples taken - an average of all the samples would give a greater weight to the sites at which samples are most frequently taken. In order to give an indication of the range of values at different sites within each region, figures are also given for the maximum and minimum site mean for each region. The data also includes for the UK average, the 10th percentile and the 90th percentile of the site means for the whole of the UK. For each determinand in each year and the 10-percentile and the 90-percentile of the site means in each region. The Harmonised Monitoring Scheme (HMS) was established to provide an archive of water quality data for the UK. It is used to provide information for international obligations, including the long-term trends of some determinands and the estimation of riverborne input of selected determinands to the sea. The detailed dataset is covered in AfA255 Historic UK Water Quality Sampling Harmonised Monitoring Scheme detailed data. Attribution statement: © Environment Agency copyright and/or database right 2015. All rights reserved
dataset
protocol: http
name: Historic_UK_Water_Quality_Sampling_Harmonised_Monitoring_Scheme_Summary_Data.zip
description: Historic_UK_Water_Quality_Sampling_Harmonised_Monitoring_Scheme_Summary_Data.zip download on Defra Data Services Platform
652a8bb0-d465-11e4-baf0-f0def148f590
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
inlandWaters
environment
inlandWaters
water quality
publication
2010-01-13
ammonia
publication
2010-01-13
river pollution
publication
2010-01-13
sampling
publication
2010-01-13
monitoring data
publication
2010-01-13
pesticide
publication
2010-01-13
-6.236
2.072
55.816
49.943
1974-01-01
2013-12-31
creation
1975-01-01
annually
Chemical and Physico-chemical data is collected via site-specific surveys
Proprietary format | MS Excel (XLS)
Unknown
Open Government Licence
© Scottish Environmental Protection Agency 2013
© Scottish Environmental Protection Agency 2013
© Scottish Environmental Protection Agency 2013
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://environment.data.gov.uk/support
description: Defra Data Services Forum
pointOfContact
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
pointOfContact
2023-12-04